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Bioassay for Bensulide, DCPA, and Siduron in Turfgrass

Published online by Cambridge University Press:  12 June 2017

A. R. Mazur ,
J. A. Jagschitz  and
C. R. Skogley
A. R. Mazur
Affiliation:
Department of Agronomy & Mechanized Agriculture, University of Rhode Island
J. A. Jagschitz
Affiliation:
Department of Agronomy & Mechanized Agriculture, University of Rhode Island
C. R. Skogley
Affiliation:
Department of Agronomy & Mechanized Agriculture, University of Rhode Island
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Abstract

Seedlings of 22 plant species were evaluated in aqueous suspensions of N-(2-mercaptoethyl)benzenesulfonamide S-(O,O-diisopropyl phosphorodithioate) (bensulide), dimethyl 2,3,5,6-tetrachloroterephthalate (DCPA), and 1-(2-methylcyclohexyl)-3-phenylurea (siduron) to determine their value as indicator plants for bioassays. The species showing the greatest sensitivity by reductions in root or shoot lengths were evaluated in soil mixtures to determine the level of sensitivity under soil conditions. These indicator plants, in most cases, proved reliable in detecting the presence and movement of bensulide, DCPA, and siduron in soils from field-treated plots. There appeared to be no accumulation in soil treated with four annual applications of bensulide, DCPA, or siduron.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 1 , January 1969 , pp. 31 - 34
Copyright
Copyright © 1969 Weed Science Society of America 

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References

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